White nylon plastic with a matte finish and slight grainy feel.
About this Product
Filter holder substrate for Kodak Aero-Ektar 178mm F2.5 lens. Besides this, you will need: (1) an 82-77mm step down adapter ring you can buy on Ebay for less than $2 shipped, (2) the original "short" lens shade that came with the AE (if not, you can get a replacement from Jo Lommen's website). Epoxy glue the step down ring to the substrate and you are good to go!